Julian Zelizer, a CNN political analyst, is a professor of history and public affairs at Princeton University and author of the forthcoming book “The Presidency of Donald J. Trump: A First Historical Assessment.” Follow him on Twitter @julianzelizer. The views expressed in this commentary are his own. View more opinion on CNN.
(CNN)This weekend, first lady Jill Biden is traveling in Eastern Europe, meeting with Ukrainian refugees, humanitarian aid workers and others who are working to assist those impacted by Russia’s war in Ukraine.
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